Home / 156,089.13-215,404.52-84,470.64

Finding the Fourth Proportional to 156,089.13, 215,404.52 and 84,470.64

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Solution

The fourth proportional to 156,089.13, 215,404.52 and 84,470.64 is: 116,570.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,089.13 : 215,404.52 = 84,470.64 : x
  2. Step 2: Convert to fraction form
    156,089.13/215,404.52 = 84,470.64/x
  3. Step 3: Cross multiply
    156,089.13x = 215,404.52 × 84,470.64
  4. Step 4: Simplify right side
    156,089.13x = 18,195,357,663.29
  5. Step 5: Solve for x
    x = 18,195,357,663.29/156,089.13
  6. Step 6: Final answer
    x = 116,570.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.